package cn.ll.po;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

/**
 * A data access object (DAO) providing persistence and search support for User
 * entities. Transaction control of the save(), update() and delete() operations
 * can directly support Spring container-managed transactions or they can be
 * augmented to handle user-managed Spring transactions. Each of these methods
 * provides additional information for how to configure it for the desired type
 * of transaction control.
 * 
 * @see cn.ll.po.User
 * @author MyEclipse Persistence Tools
 */

public class UserDAO extends HibernateDaoSupport {
	private static final Log log = LogFactory.getLog(UserDAO.class);
	// property constants
	public static final String USERNAME = "username";
	public static final String PASSWORD = "password";
	public static final String DEPARTMENTID = "departmentid";
	public static final String STATUS = "status";
	public static final String STUFFID = "stuffid";

	protected void initDao() {
		// do nothing
	}

	public void save(User transientInstance) {
		log.debug("saving User instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(User persistentInstance) {
		log.debug("deleting User instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public User findById(java.lang.String id) {
		log.debug("getting User instance with id: " + id);
		try {
			User instance = (User) getHibernateTemplate().get("cn.ll.po.User",
					id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List<User> findByExample(User instance) {
		log.debug("finding User instance by example");
		try {
			List<User> results = (List<User>) getHibernateTemplate()
					.findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding User instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from User as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List<User> findByUsername(Object username) {
		return findByProperty(USERNAME, username);
	}

	public List<User> findByPassword(Object password) {
		return findByProperty(PASSWORD, password);
	}

	public List<User> findByDepartmentid(Object departmentid) {
		return findByProperty(DEPARTMENTID, departmentid);
	}

	public List<User> findByStatus(Object status) {
		return findByProperty(STATUS, status);
	}

	public List<User> findByStuffid(Object stuffid) {
		return findByProperty(STUFFID, stuffid);
	}

	public List findAll() {
		log.debug("finding all User instances");
		try {
			String queryString = "from User";
			//return getHibernateTemplate().find(queryString);
			return this.getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public User merge(User detachedInstance) {
		log.debug("merging User instance");
		try {
			User result = (User) getHibernateTemplate().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}
    
	public boolean update(User user){
		log.debug("update User instance");
		try{
			getHibernateTemplate().saveOrUpdate(user);
			log.debug("update successful");
			return true;
		}catch(RuntimeException re){
			log.error("update failed", re);
			return false;
		}
	}
	
	public void attachDirty(User instance) {
		log.debug("attaching dirty User instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(User instance) {
		log.debug("attaching clean User instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static UserDAO getFromApplicationContext(ApplicationContext ctx) {
		return (UserDAO) ctx.getBean("UserDAO");
	}

	public Map findUserNotDel() {
		log.debug("finding User instances Not del");
		try {
			String queryString = "from User as model where model.status <> ?";
			List list =  getHibernateTemplate().find(queryString, 3);
			int size = list.size();
			Map map = new HashMap(0);
			map.put("list", list);
			map.put("totalcount", size);
			return map;
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}
	public Map findUserNotDel(Integer start,Integer limit) {
		log.debug("finding User instances Not del");
		try {
			String queryString = "from User as model where model.status <> ?";
			List list =  getHibernateTemplate().find(queryString, 3);
			int size = list.size();
			Map map = new HashMap(0);
			int toIndex = start+limit > size?size:start+limit;
			map.put("list", list.subList(start, toIndex));
			map.put("totalcount", size);
			return map;
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}
}